WO2001035173A1 - Electronic wrist watch comprising an integrated circuit incorporated in a flexible band - Google Patents

Electronic wrist watch comprising an integrated circuit incorporated in a flexible band Download PDF

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Publication number
WO2001035173A1
WO2001035173A1 PCT/CH2000/000604 CH0000604W WO0135173A1 WO 2001035173 A1 WO2001035173 A1 WO 2001035173A1 CH 0000604 W CH0000604 W CH 0000604W WO 0135173 A1 WO0135173 A1 WO 0135173A1
Authority
WO
WIPO (PCT)
Prior art keywords
bracelet
components
display unit
wristwatch
wrist watch
Prior art date
Application number
PCT/CH2000/000604
Other languages
French (fr)
Inventor
Olivier Silvant
Jacques Müller
Original Assignee
The Swatch Group Management Services Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by The Swatch Group Management Services Ag filed Critical The Swatch Group Management Services Ag
Priority to US09/869,971 priority Critical patent/US6619836B1/en
Priority to DE60040268T priority patent/DE60040268D1/en
Priority to JP2001536642A priority patent/JP4763200B2/en
Priority to EP00972529A priority patent/EP1145085B1/en
Publication of WO2001035173A1 publication Critical patent/WO2001035173A1/en
Priority to HK02105653A priority patent/HK1044199A1/en

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G99/00—Subject matter not provided for in other groups of this subclass
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G17/00—Structural details; Housings
    • G04G17/08—Housings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/189—Printed circuits structurally associated with non-printed electric components characterised by the use of a flexible or folded printed circuit

Definitions

  • the present invention relates to an electronic wristwatch comprising a flexible bracelet having a molded elastomer body, an electronic clock movement comprising components mounted on a flexible film with printed circuits, said components and the flexible film being incorporated in the body of the bracelet by overmolding of the elastomer of said body, a display unit controlled by the watch movement, and a source of electrical power connected to the watch movement.
  • the invention also relates to a method of manufacturing such a wristwatch.
  • a wristwatch of this kind comprising a liquid crystal display unit or the like, controlled by an electronic circuit powered by a battery or another power source. electric.
  • the components of the electronic circuit and the display unit itself are incorporated into the bracelet, which is made of flexible plastic material or the like by overmolding on these elements in the form of a flat strip of small thickness, the screen display being located in the middle part of this bracelet.
  • the battery housing is provided in a thicker part located at one end of the bracelet, which can carry a closure element thereof. Near the display screen, several sensitive control keys are provided which are integrated inside the bracelet, but the upper face of which is flush with the corresponding face of the latter.
  • the display screen being integrated into the bracelet due to the overmolding of the latter, the upper face of the screen must be flush with the upper face of the bracelet so that the indications displayed are visible, unless the bracelet is molded in a transparent plastic material for reading the display.
  • the plastic material used for overmolding must be relatively soft so that the bracelet is flexible enough.
  • the components coated in this material are poorly protected against external pressures and risk being quickly damaged when the watch is worn on the wrist. This may explain the fact that this kind of watch has not met with commercial success so far.
  • a wristwatch is described, the case and the strap of which are formed from a single molded piece, for example made of polypropylene, this strap being connected to the case by thinned parts which form flexible hinges.
  • the bracelet has housings fitted with control keys which are electrically connected to the modules electronics mounted in the housing by a printed circuit film, which is embedded in the plastic.
  • the manufacture of such a watch is relatively complex because it requires the mounting of multiple elements in the case and the housings provided in the bracelet.
  • the present invention aims to create a wristwatch in which most or all of the electronic components are embedded in a flexible bracelet, but are nevertheless protected from damage which may be caused by external influences during normal use of the watch. .
  • the invention relates to an electronic wristwatch of the kind indicated in the preamble, characterized in that it comprises a plurality of external elements mounted on the body of the bracelet and flexibly connected to each other by the bracelet , at least some of these external elements being housings arranged so as to cover and protect components of the watch movement and the display unit.
  • the delicate elements of the watch namely the components of the watch movement and the display unit, are mounted economically in or on the bracelet and are protected by sufficiently rigid cases, which can be extremely simple. and inexpensive while having an attractive exterior appearance.
  • the wristwatch can be completed by other external elements, for example decorative elements having an appearance similar to that of the cases and distributed along the body of the bracelet.
  • the invention further provides an advantageous method of manufacturing such a wristwatch, comprising the following steps: the components of the timepiece movement are mounted on the flexible film with printed circuits, which comprises electrical connection means for the connect to the display unit and the power source; then the bracelet body is produced by overmolding on the flexible film and on said components, with the exception of the connection means; then the display unit and the power source are connected to said connection means and the external elements are fixed to the body of the bracelet.
  • FIG. 1 is a partial perspective view of a wristwatch according to the invention
  • FIG. 2 is an exploded perspective view showing the main elements of the watch in FIG. 1, and - Figure 3 is a perspective view in longitudinal section showing certain elements of Figure 2
  • the wristwatch shown in FIG. 1 comprises a flexible bracelet 1 on which is mounted a row of external elements comprising cases 2, 3, 4 and decorative elements 5 These external elements are distributed along the flexible bracelet 1 which connects to each other and which has at its ends conventional closing means not shown, for example a buckle with a pin or a folding clasp
  • the external elements 2 to 5 are preferably all the same size and can be shaped to give the wristwatch the appearance of a link bracelet or another fancy aspect
  • unlike a classic wristwatch we do not notice the presence of a case containing the entire watch movement display, but only a glass 6 arranged on the upper face of the housing 3 to allow a reading of a display unit contained in this housing
  • the internal structure of the wristwatch appears in FIGS.
  • the body of the bracelet 1 is formed by a molded strip of electrically insulating thermoplastic material such as an elastomer and contains a flexible film 10 with printed circuits which, in the present example, is extends in the area covered by the three cases 2, 3 and 4, in particular for electrically connecting the elements of the watch which are covered by these cases
  • On this film 10 are mounted most and preferably all of the components of the movement of horology, of which we see for example a quartz resonator 1 1 and an integrated circuit 12 in FIG.
  • a cavity 14 is formed in the upper part of the elastomer strap to receive the lower part of an electric battery 15 serving as a source of power for the watch.
  • the flexible film 10 has printed circuits. comprises in this zone two contact strips 16 and 17 which emerge in the cavity 14 to be applied against the corresponding poles of the battery 15 and connect the latter to the printed circuits
  • the flexible film 10 comprises a connection tab 18 provided with conductive tracks 19 for connecting the printed circuits to a display unit 20, preferably constituted by a liquid crystal display cell L unit 20 not being incorporated into the elastomer body of bracelet 1, the connection tab 18 emerges from the elastomer and it is preferably folded back to be fixed to the edge of the unit 20 carrying the cell control contacts, for example by means of an anisotropic adhesive.
  • the tongue 18 extends laterally from the flexible film 10, but one could also provide that it extends longitudinally.
  • the central housing 3 has an upper opening 22 in which the glass 6 is mounted using a seal 23.
  • the housing 3 or one of the two other boxes 2 and 4 is equipped with a push button 24 making it possible to control various functions of the watch, in particular the time setting, via the tracks 19 of the tongue 18.
  • the cases 2, 3 and 4 are open downwards and shaped so as to overlap the body of the bracelet 1, against which they are pressed in a sealed manner thanks to the fact that the compressible nature of the elastomer allows it to play the role of '' a seal.
  • the body of the bracelet has a surface bead 26 on its upper face and its lateral faces, facing the surfaces of the casings 2 to 4 pressing against the bracelet.
  • Each of the cases 2 to 4 is fixed to the bracelet 1 using a respective bottom plate 27 provided with holes through which pass screws 28 passing through holes 30 of the bracelet and engaging in the side walls of the case . This allows the body of the bracelet 1 to be clamped between the plate and the case to guarantee watertightness.
  • the decorative elements 5 overlap the body of the bracelet 1 like the cases 2 to 4 and are also fixed by tightening thereon using a respective bottom plate 29.
  • the fixing of the plate 29 to the decorative element 5 does not need to be made by screws and can also be carried out, for example, by gluing or clipping.
  • the decorative elements have an annular shape and are threaded onto the body of bracelet 1.
  • the boxes 2 to 4 and the decorative elements 5 can be made of any rigid or semi-rigid material, for example in the form of molded or injected plastic parts, in the case of an inexpensive watch. They can have a rectangular or other shape, depending on the desired aesthetic effects, and identical or different sizes. It should be noted that the invention makes it possible to group under the casings 2 to 4 all the delicate components of the watch and thus protect them against shocks, pressures or any external influence liable to damage them.
  • the flexible film 10 is not entirely protected by the cases, but its coating with the elastomeric material of the bracelet 1 offers it protection sufficient between the housings.
  • the box 2 containing the battery 15 can be removed easily to allow the battery to be replaced.
  • the wristwatch can be produced by an inexpensive process.
  • the flexible film 10 with integrated circuits is obtained by cutting a strip comprising a large number of these circuits.
  • the components of the timepiece movement are mounted on the film, either before or after cutting the band.
  • the elastomer body of the bracelet 1 is overmolded on the film 10 fitted with the electrical components, protecting the connection tab 18 and the contact strips 16 and 17 so that they emerge from the elastomer body.
  • overmolding can be carried out in several stages, in particular to facilitate the positioning of the flexible film in the mold and / or the incorporation of reinforcing elements such as threads or a textile ribbon forming a core of the bracelet.
  • the molded body may include protruding elements for holding the display unit and the battery, for example by clipping.
  • the display unit 20 can be connected to the tongue 18, either before overmolding or after. Then, it suffices to place the battery 15 in the cavity 14 and to mount the cases 2 to 4 and the decorative elements 5 on the bracelet, and also to assemble the clasp of the bracelet if necessary. It is understood that this method of production makes it possible to produce the wristwatch in an automated manner as much as possible and at a very low cost.
  • the display unit can be of any type, in particular of the analog type with stepping motor.
  • the battery serving as a source of electrical energy can be replaced by any other suitable supply system, for example with solar cells or a microgenerator driven by the movements of the wearer of the watch.
  • the cases protecting the components of the watch movement, the display and the battery may be more or less numerous.
  • the decorative elements 5 are not essential in the context of the invention.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)

Abstract

The invention concerns a wrist watch whereof the components (11, 12) of the electronic clockwatch movement are mounted on a flexible film with printed circuits (10), which is itself incorporated in the band (1) by overmoulding of an insulating elastomer material. The external elements in the form of watch cases (2 to 4) are mounted sealed on the band to protect said components and cover at least a display unit (20) and an electric power supply source (15). Decorative elements (5) similar to the watch cases are distributed along the band to imitate links. Such a wrist watch can be produced with little cost.

Description

MONTRE-BRACELET ELECTRON IQUE COMPORTANT UN CI RCU IT I MPRI ME I N CORPORE DAN S U N BRACELET SOUPLE ELECTRONIC BRACELET WATCH COMPRISING A CI RCU IT I MPRI ME I N CORPORE IN A FLEXIBLE BRACELET
La présente invention concerne une montre-bracelet électronique comportant un bracelet souple ayant un corps en élastomère moulé, un mouvement d'horlogerie électronique comportant des composants montés sur un film flexible à circuits imprimés, lesdits composants et le film flexible étant incorporés dans le corps du bracelet par surmoulage de l'élastomère dudit corps, une unité d'affichage commandée par le mouvement d'horlogerie, et une source d'alimentation électrique connectée au mouvement d'horlogerie. L'invention concerne aussi un procédé de fabrication d'une telle montre-bracelet.The present invention relates to an electronic wristwatch comprising a flexible bracelet having a molded elastomer body, an electronic clock movement comprising components mounted on a flexible film with printed circuits, said components and the flexible film being incorporated in the body of the bracelet by overmolding of the elastomer of said body, a display unit controlled by the watch movement, and a source of electrical power connected to the watch movement. The invention also relates to a method of manufacturing such a wristwatch.
Dans la demande de brevet français No 2 595 480, il est prévu une montre- bracelet de ce genre, comportant une unité d'affichage à cristaux liquides ou similaire, commandée par un circuit électronique alimentée par une pile ou une autre source d'alimentation électrique. Les éléments constitutifs du circuit électronique et l'unité d'affichage elle-même sont incorporés dans le bracelet, qui est fabriqué en matière plastique flexible ou similaire par surmoulage sur ces éléments sous forme d'une bande plate de faible épaisseur, l'écran d'affichage étant situé dans la partie médiane de ce bracelet. Le logement de la pile est ménagé dans une partie plus épaisse située à l'une des extrémités du bracelet, qui peut porter un élément de fermeture de celui-ci. A proximité de l'écran d'affichage, il est prévu plusieurs touches sensitives de commande qui sont intégrées à l'intérieur du bracelet, mais dont la face supérieure affleure la face correspondante de celui-ci. L'écran d'affichage étant intégré dans le bracelet du fait du surmoulage de celui-ci, la face supérieure de l'écran doit affleurer la face supérieure du bracelet pour que les indications affichées soient visibles, à moins que le bracelet soit moulé en une matière plastique transparente permettant la lecture de l'affichage. Avec une telle structure, on conçoit que la matière plastique utilisée pour le surmoulage doit être relativement tendre pour que le bracelet soit assez souple. En conséquence, les composants enrobés dans cette matière sont mal protégés contre des pressions extérieures et risquent d'être rapidement endommagés lorsque la montre est portée au poignet. Ceci peut expliquer le fait que ce genre de montre n'a pas rencontré de succès commercial jusqu'à présent.In French patent application No. 2,595,480, a wristwatch of this kind is provided, comprising a liquid crystal display unit or the like, controlled by an electronic circuit powered by a battery or another power source. electric. The components of the electronic circuit and the display unit itself are incorporated into the bracelet, which is made of flexible plastic material or the like by overmolding on these elements in the form of a flat strip of small thickness, the screen display being located in the middle part of this bracelet. The battery housing is provided in a thicker part located at one end of the bracelet, which can carry a closure element thereof. Near the display screen, several sensitive control keys are provided which are integrated inside the bracelet, but the upper face of which is flush with the corresponding face of the latter. The display screen being integrated into the bracelet due to the overmolding of the latter, the upper face of the screen must be flush with the upper face of the bracelet so that the indications displayed are visible, unless the bracelet is molded in a transparent plastic material for reading the display. With such a structure, it can be understood that the plastic material used for overmolding must be relatively soft so that the bracelet is flexible enough. As a result, the components coated in this material are poorly protected against external pressures and risk being quickly damaged when the watch is worn on the wrist. This may explain the fact that this kind of watch has not met with commercial success so far.
Dans la demande de brevet britannique No 1 574 730, il est décrit une montre- bracelet dont le boîtier et le bracelet sont formés d'une seule pièce moulée, par exemple en polypropylène, ce bracelet étant raccordé au boîtier par des parties amincies qui forment des charnières flexibles. Le bracelet comporte des logements équipé de touches de commande qui sont reliées électriquement aux modules électroniques montés dans le boîtier par un film à circuits imprimés, lequel est noyé dans la matière plastique. La fabrication d'une telle montre est relativement complexe parce qu'elle nécessite le montage de multiples éléments dans le boîtier et les logements prévus dans le bracelet. La présente invention vise à créer une montre-bracelet dans laquelle la plupart ou la totalité de composants électroniques sont noyés dans un bracelet souple, mais sont néanmoins à l'abri des dommages pouvant être causés par des influences extérieures durant un usage normal de la montre. En outre, cette montre devrait pouvoir être fabriquée à un coût très bas. Dans ce but, l'invention concerne une montre-bracelet électronique du genre indiquée en préambule, caractérisée en ce qu'elle comporte une pluralité d'éléments extérieurs montés sur le corps du bracelet et reliés les uns aux autres de manière souple par le bracelet, au moins certains de ces éléments extérieurs étant des boîtiers disposés de façon à recouvrir et protéger des composants du mouvement d'horlogerie et l'unité d'affichage.In British patent application No. 1,574,730, a wristwatch is described, the case and the strap of which are formed from a single molded piece, for example made of polypropylene, this strap being connected to the case by thinned parts which form flexible hinges. The bracelet has housings fitted with control keys which are electrically connected to the modules electronics mounted in the housing by a printed circuit film, which is embedded in the plastic. The manufacture of such a watch is relatively complex because it requires the mounting of multiple elements in the case and the housings provided in the bracelet. The present invention aims to create a wristwatch in which most or all of the electronic components are embedded in a flexible bracelet, but are nevertheless protected from damage which may be caused by external influences during normal use of the watch. . In addition, this watch should be able to be produced at a very low cost. To this end, the invention relates to an electronic wristwatch of the kind indicated in the preamble, characterized in that it comprises a plurality of external elements mounted on the body of the bracelet and flexibly connected to each other by the bracelet , at least some of these external elements being housings arranged so as to cover and protect components of the watch movement and the display unit.
Ainsi, les éléments délicats de la montre, à savoir les composants du mouvement d'horlogerie et l'unité d'affichage, sont montés de manière économique dans ou sur le bracelet et sont protégés par des boîtiers suffisamment rigides, qui peuvent être extrêmement simples et peu coûteux tout en ayant un aspect extérieur attrayant. La montre-bracelet peut être complétée par d'autres éléments extérieurs, par exemple des éléments décoratifs ayant un aspect analogue à celui des boîtiers et répartis le long du corps du bracelet.Thus, the delicate elements of the watch, namely the components of the watch movement and the display unit, are mounted economically in or on the bracelet and are protected by sufficiently rigid cases, which can be extremely simple. and inexpensive while having an attractive exterior appearance. The wristwatch can be completed by other external elements, for example decorative elements having an appearance similar to that of the cases and distributed along the body of the bracelet.
L'invention fournit en outre un procédé de fabrication avantageux d'une telle montre-bracelet, comprenant les étapes suivantes : on monte les composants du mouvement d'horlogerie sur le film flexible à circuits imprimés, lequel comporte des moyens de connexion électrique pour le relier à l'unité d'affichage et à la source d'alimentation; puis on réalise le corps du bracelet par surmoulage sur le film flexible et sur lesdits composants, à l'exception des moyens de connexion; puis on raccorde l'unité d'affichage et la source d'alimentation auxdits moyens de connexion et l'on fixe les éléments extérieurs sur le corps du bracelet.The invention further provides an advantageous method of manufacturing such a wristwatch, comprising the following steps: the components of the timepiece movement are mounted on the flexible film with printed circuits, which comprises electrical connection means for the connect to the display unit and the power source; then the bracelet body is produced by overmolding on the flexible film and on said components, with the exception of the connection means; then the display unit and the power source are connected to said connection means and the external elements are fixed to the body of the bracelet.
D'autres caractéristiques et avantages de l'invention apparaîtront dans la description suivante d'une forme de réalisation préférée, présentée à titre d'exemple non limitatif en référence aux dessins annexés, dans lesquels :Other characteristics and advantages of the invention will appear in the following description of a preferred embodiment, presented by way of nonlimiting example with reference to the appended drawings, in which:
- la figure 1 est une vue partielle en perspective d'une montre-bracelet selon l'invention,FIG. 1 is a partial perspective view of a wristwatch according to the invention,
- la figure 2 est une vue éclatée en perspective montrant les principaux éléments de la montre de la figure 1 , et - la figure 3 est une vue en perspective et en coupe longitudinale montrant certains éléments de la figure 2FIG. 2 is an exploded perspective view showing the main elements of the watch in FIG. 1, and - Figure 3 is a perspective view in longitudinal section showing certain elements of Figure 2
La montre-bracelet représentée à la figure 1 comporte un bracelet souple 1 sur lequel est montée une rangée d'éléments extérieurs comprenant des boîtiers 2, 3, 4 et des éléments décoratifs 5 Ces éléments extérieurs sont répartis le long du bracelet souple 1 qui les relie les uns aux autres et qui comporte à ses extrémités des moyens de fermeture classique non représentés, par exemple une boucle avec ardillon ou un fermoir pliant Les éléments extérieurs 2 à 5 ont de préférence tous la même taille et peuvent être conformés pour donner à la montre-bracelet l'apparence d'un bracelet à maillons ou un autre aspect de fantaisie Dans cet exemple, contrairement à une montre-bracelet classique, on ne remarque pas la présence d'un boîtier contenant tout le mouvement d'horlogerie à l'affichage, mais seulement une glace 6 disposée sur la face supérieure du boîtier 3 pour permettre de lire une unité d'affichage contenue dans ce boîtier La structure interne de la montre-bracelet apparaît dans les figures 2 et 3 Le corps du bracelet 1 est formé par une bande moulée en matière thermoplastique électriquement isolante telle qu'un élastomère et contient un film flexible 10 à circuits imprimés qui, dans le présent exemple, s'étend dans la zone couverte par les trois boîtiers 2, 3 et 4, en particulier pour relier électriquement les éléments de la montre qui sont couverts par ces boîtiers Sur ce film 10 sont montés la plupart et de préférence la totalité des composants du mouvement d'horlogerie, dont on voit par exemple un résonateur à quartz 1 1 et un circuit intégré 12 dans la figure 2, dans la zone couverte par le boîtier 4 On notera que dans cette zone la partie supérieure de l'élastomère, indiquée par la référence 13 dans la figure 3, a été supprimée dans la figure 2 de façon à laisser voir les composants 1 1 et 12, mais en réalité ils sont enrobés dans l'élastomèreThe wristwatch shown in FIG. 1 comprises a flexible bracelet 1 on which is mounted a row of external elements comprising cases 2, 3, 4 and decorative elements 5 These external elements are distributed along the flexible bracelet 1 which connects to each other and which has at its ends conventional closing means not shown, for example a buckle with a pin or a folding clasp The external elements 2 to 5 are preferably all the same size and can be shaped to give the wristwatch the appearance of a link bracelet or another fancy aspect In this example, unlike a classic wristwatch, we do not notice the presence of a case containing the entire watch movement display, but only a glass 6 arranged on the upper face of the housing 3 to allow a reading of a display unit contained in this housing The internal structure of the wristwatch appears in FIGS. 2 and 3 The body of the bracelet 1 is formed by a molded strip of electrically insulating thermoplastic material such as an elastomer and contains a flexible film 10 with printed circuits which, in the present example, is extends in the area covered by the three cases 2, 3 and 4, in particular for electrically connecting the elements of the watch which are covered by these cases On this film 10 are mounted most and preferably all of the components of the movement of horology, of which we see for example a quartz resonator 1 1 and an integrated circuit 12 in FIG. 2, in the zone covered by the housing 4 It will be noted that in this zone the upper part of the elastomer, indicated by the reference 13 in Figure 3, has been deleted in Figure 2 so as to show the components 1 1 and 12, but in reality they are coated in the elastomer
Dans la zone couverte par le boîtier 2, une cavité 14 est ménagée dans la partie supérieure du bracelet en élastomère pour recevoir la partie inférieure d'une pile électrique 15 servant de source d'alimentation électrique de la montre Le film flexible 10 a circuits imprimés comporte dans cette zone deux lamelles de contact 16 et 17 qui émergent dans la cavité 14 pour s'appliquer contre les pôles correspondants de la pile 15 et relier celle-ci aux circuits imprimesIn the area covered by the housing 2, a cavity 14 is formed in the upper part of the elastomer strap to receive the lower part of an electric battery 15 serving as a source of power for the watch. The flexible film 10 has printed circuits. comprises in this zone two contact strips 16 and 17 which emerge in the cavity 14 to be applied against the corresponding poles of the battery 15 and connect the latter to the printed circuits
Dans la zone couverte par le boîtier 3, le film flexible 10 comporte une languette de connexion 18 pourvue de pistes conductrices 19 pour relier les circuits imprimes à une unité d'affichage 20, constituée de préférence par une cellule d'affichage à cristaux liquides L'unité 20 n'étant pas incorporée dans le corps en élastomère du bracelet 1 , la languette de connexion 18 émerge de l'élastomère et elle est de préférence repliée pour être fixée au bord de l'unité 20 portant les contacts de commande de la cellule, par exemple au moyen d'une colle anisotrope. Dans l'exemple représenté, la languette 18 s'étend latéralement à partir du film flexible 10, mais on pourrait aussi prévoir qu'elle s'étende longitudinalement. Alors que les boîtiers 2 et 4 sont complètement fermés dessus et sur les côtés, le boîtier central 3 a une ouverture supérieure 22 dans laquelle la glace 6 est montée à l'aide d'un joint d'étanchéité 23. Par ailleurs, le boîtier 3 ou l'un des deux autres boîtiers 2 et 4 est équipé d'un bouton-poussoir 24 permettant de commander diverses fonctions de la montre, en particulier la mise à l'heure, via les pistes 19 de la languette 18.In the area covered by the housing 3, the flexible film 10 comprises a connection tab 18 provided with conductive tracks 19 for connecting the printed circuits to a display unit 20, preferably constituted by a liquid crystal display cell L unit 20 not being incorporated into the elastomer body of bracelet 1, the connection tab 18 emerges from the elastomer and it is preferably folded back to be fixed to the edge of the unit 20 carrying the cell control contacts, for example by means of an anisotropic adhesive. In the example shown, the tongue 18 extends laterally from the flexible film 10, but one could also provide that it extends longitudinally. While the housings 2 and 4 are completely closed above and on the sides, the central housing 3 has an upper opening 22 in which the glass 6 is mounted using a seal 23. Furthermore, the housing 3 or one of the two other boxes 2 and 4 is equipped with a push button 24 making it possible to control various functions of the watch, in particular the time setting, via the tracks 19 of the tongue 18.
Les boîtiers 2, 3 et 4 sont ouverts vers le bas et conformés de manière à chevaucher le corps du bracelet 1 , contre lequel ils sont appuyés de manière étanche grâce au fait que la nature compressible de l'élastomère lui permet de jouer le rôle d'une garniture d'étanchéité. Pour augmenter localement cette compressibilité, le corps du bracelet présente un bourrelet superficiel 26 sur sa face supérieure et ses faces latérales, en regard des surfaces des boîtiers 2 à 4 s'appuyant contre le bracelet. Chacun des boîtiers 2 à 4 est fixé sur le bracelet 1 à l'aide d'une plaque de fond respective 27 pourvue de trous à travers lesquels passent des vis 28 traversant des trous 30 du bracelet et s'engageant dans les parois latérales du boîtier. Ceci permet de serrer le corps du bracelet 1 entre la plaque et le boîtier pour garantir l'étanchéité.The cases 2, 3 and 4 are open downwards and shaped so as to overlap the body of the bracelet 1, against which they are pressed in a sealed manner thanks to the fact that the compressible nature of the elastomer allows it to play the role of '' a seal. To locally increase this compressibility, the body of the bracelet has a surface bead 26 on its upper face and its lateral faces, facing the surfaces of the casings 2 to 4 pressing against the bracelet. Each of the cases 2 to 4 is fixed to the bracelet 1 using a respective bottom plate 27 provided with holes through which pass screws 28 passing through holes 30 of the bracelet and engaging in the side walls of the case . This allows the body of the bracelet 1 to be clamped between the plate and the case to guarantee watertightness.
Les éléments décoratifs 5 chevauchent le corps du bracelet 1 comme les boîtiers 2 à 4 et sont également fixés par serrage sur celui-ci à l'aide d'une plaque de fond respective 29. Comme il n'y a pas de souci d'étanchéité dans ce cas, la fixation de la plaque 29 à l'élément décoratif 5 n'a besoin d'être faite par des vis et peut aussi être réalisée, par exemple, par collage ou clipsage. On pourrait aussi prévoir que les éléments décoratifs aient une forme annulaire et soient enfilés sur le corps du bracelet 1.The decorative elements 5 overlap the body of the bracelet 1 like the cases 2 to 4 and are also fixed by tightening thereon using a respective bottom plate 29. As there is no concern for sealing in this case, the fixing of the plate 29 to the decorative element 5 does not need to be made by screws and can also be carried out, for example, by gluing or clipping. It could also be provided that the decorative elements have an annular shape and are threaded onto the body of bracelet 1.
Les boîtiers 2 à 4 et les éléments décoratifs 5 peuvent être faits de toute matière rigide ou semi-rigide, par exemple sous forme de pièces en matière plastique moulée ou injectée, dans le cas d'une montre peu coûteuse. Ils peuvent avoir une forme rectangulaire ou autre, en fonction des effets esthétiques recherchés, et des tailles identiques ou différentes. On remarque que l'invention permet de regrouper sous les boîtiers 2 à 4 tous les composants délicats de la montre et de les protéger ainsi contre des chocs, des pressions ou toute influence extérieure risquant de les endommager. Le film flexible 10 n'est pas entièrement protégé par les boîtiers, mais son enrobage par la matière élastomère du bracelet 1 lui offre une protection suffisante entre les boîtiers. On notera aussi que le boîtier 2 contenant la pile 15 peut être démonté facilement pour permettre de remplacer la pile.The boxes 2 to 4 and the decorative elements 5 can be made of any rigid or semi-rigid material, for example in the form of molded or injected plastic parts, in the case of an inexpensive watch. They can have a rectangular or other shape, depending on the desired aesthetic effects, and identical or different sizes. It should be noted that the invention makes it possible to group under the casings 2 to 4 all the delicate components of the watch and thus protect them against shocks, pressures or any external influence liable to damage them. The flexible film 10 is not entirely protected by the cases, but its coating with the elastomeric material of the bracelet 1 offers it protection sufficient between the housings. It will also be noted that the box 2 containing the battery 15 can be removed easily to allow the battery to be replaced.
Avec la structure décrite ci-dessus, la montre-bracelet peut être fabriquée par un procédé peu coûteux. De préférence, le film flexible 10 à circuits intégrés est obtenu par découpage d'une bande comportant un grand nombre de ces circuits. Les composants du mouvement d'horlogerie sont montés sur le film, soit avant, soit après le découpage de la bande. Ensuite, on effectue le surmoulage du corps en élastomère du bracelet 1 sur le film 10 équipé des composants électriques, en protégeant la languette de connexion 18 et les lamelles de contact 16 et 17 pour qu'elles émergent du corps en élastomère. Au besoin, le surmoulage peut être réalisé en plusieurs étapes, notamment pour faciliter le positionnement du film flexible dans le moule et/ou l'incorporation d'éléments de renfort tels que des fils ou un ruban textile formant une âme du bracelet. Le corps moulé peut comporter des éléments protubérants pour tenir l'unité d'affichage et la pile, par exemple par clipsage. L'unité d'affichage 20 peut être raccordée à la languette 18, soit avant le surmoulage, soit après. Ensuite, il suffit de mettre en place la pile 15 dans la cavité 14 et de monter sur le bracelet les boîtiers 2 à 4 et les éléments décoratifs 5, et procéder en outre au montage du fermoir du bracelet s'il y a lieu. On conçoit que ce mode de fabrication permet de produire la montre-bracelet d'une manière automatisée au maximum et à un coût très bas.With the structure described above, the wristwatch can be produced by an inexpensive process. Preferably, the flexible film 10 with integrated circuits is obtained by cutting a strip comprising a large number of these circuits. The components of the timepiece movement are mounted on the film, either before or after cutting the band. Next, the elastomer body of the bracelet 1 is overmolded on the film 10 fitted with the electrical components, protecting the connection tab 18 and the contact strips 16 and 17 so that they emerge from the elastomer body. If necessary, overmolding can be carried out in several stages, in particular to facilitate the positioning of the flexible film in the mold and / or the incorporation of reinforcing elements such as threads or a textile ribbon forming a core of the bracelet. The molded body may include protruding elements for holding the display unit and the battery, for example by clipping. The display unit 20 can be connected to the tongue 18, either before overmolding or after. Then, it suffices to place the battery 15 in the cavity 14 and to mount the cases 2 to 4 and the decorative elements 5 on the bracelet, and also to assemble the clasp of the bracelet if necessary. It is understood that this method of production makes it possible to produce the wristwatch in an automated manner as much as possible and at a very low cost.
Dans le cadre de la présente invention, la construction décrite ci-dessus peut faire l'objet de multiples variantes. L'unité d'affichage peut être de n'importe quel type, notamment du type analogique à moteur pas à pas. La pile servant de source d'énergie électrique peut être remplacée par tout autre système d'alimentation approprié, par exemple à cellules solaires ou à microgénératrice entraînée par les mouvements du porteur de la montre. Les boîtiers protégeant les composants du mouvement d'horlogerie, l'affichage et la pile peuvent être plus ou moins nombreux. En particulier, on peut prévoir plusieurs affichages répartis dans plusieurs boîtiers, si la montre comporte diverses fonctions additionnelles. On peut également prévoir plusieurs boutons de commande, et ceux-ci peuvent être disposés soit sur les boîtiers, soit dans le corps du bracelet lui-même, par exemple en étant noyés dans l'élastomère. Bien entendu, les éléments décoratifs 5 ne sont pas indispensables dans le cadre de l'invention. In the context of the present invention, the construction described above can be the subject of multiple variants. The display unit can be of any type, in particular of the analog type with stepping motor. The battery serving as a source of electrical energy can be replaced by any other suitable supply system, for example with solar cells or a microgenerator driven by the movements of the wearer of the watch. The cases protecting the components of the watch movement, the display and the battery may be more or less numerous. In particular, it is possible to provide several displays distributed in several cases, if the watch includes various additional functions. One can also provide several control buttons, and these can be arranged either on the cases, or in the body of the bracelet itself, for example by being embedded in the elastomer. Of course, the decorative elements 5 are not essential in the context of the invention.

Claims

REVEND ICATIO NS RESELL ICATIO NS
1. Montre-bracelet électronique comportant :1. Electronic wristwatch comprising:
- un bracelet souple (1 ) ayant un corps en élastomère moulé;- a flexible bracelet (1) having a molded elastomer body;
- un mouvement d'horlogerie électronique comportant des composants (11 , 12) montés sur un film flexible à circuits imprimés (10), lesdits composants et le film flexible étant incorporés dans le corps du bracelet par surmoulage de l'élastomère dudit corps;- an electronic watch movement comprising components (11, 12) mounted on a flexible film with printed circuits (10), said components and the flexible film being incorporated into the body of the bracelet by overmolding of the elastomer of said body;
- une unité d'affichage (20) commandée par le mouvement d'horlogerie; et- a display unit (20) controlled by the clockwork movement; and
- une source d'alimentation électrique (15) connectée au mouvement d'horlogerie; la montre-bracelet étant caractérisée en ce qu'elle comporte en outre une pluralité d'éléments extérieurs (2 à 5) montés sur le corps du bracelet (1 ) et reliés les uns aux autres de manière souple par le bracelet, au moins certains des éléments extérieurs étant des boîtiers (2 à 4) disposés de façon à recouvrir et protéger des composants (11 , 12) du mouvement d'horlogerie et l'unité d'affichage (20). - an electric power source (15) connected to the clockwork movement; the wristwatch being characterized in that it further comprises a plurality of external elements (2 to 5) mounted on the body of the bracelet (1) and flexibly connected to each other by the bracelet, at least some external elements being housings (2 to 4) arranged so as to cover and protect components (11, 12) of the clock movement and the display unit (20).
2. Montre-bracelet selon la revendication 1 , caractérisée en ce que la source d'alimentation électrique comporte une pile électrique (15) et en ce que l'un des éléments extérieurs est un boîtier (2) agencé pour recouvrir ladite pile.2. Wristwatch according to claim 1, characterized in that the electric power source comprises an electric battery (15) and in that one of the external elements is a case (2) arranged to cover said battery.
3. Montre-bracelet selon la revendication 1 ou 2, caractérisée en ce que les boîtiers (2 à 4) sont appliqués de manière étanche contre le corps du bracelet, dont la matière élastomère constitue une garniture d'étanchéité.3. Wrist watch according to claim 1 or 2, characterized in that the cases (2 to 4) are applied in leaktight manner against the body of the bracelet, the elastomeric material of which constitutes a seal.
4. Montre-bracelet selon la revendication 3, caractérisée en ce que le corps du bracelet comporte, en regard de chaque boîtier, un bourrelet superficiel (26) agencé pour s'appliquer de manière étanche contre le boîtier.4. Wrist watch according to claim 3, characterized in that the body of the bracelet comprises, facing each case, a surface bead (26) arranged to be applied in a sealed manner against the case.
5. Montre-bracelet selon la revendication 3, caractérisée en ce que chaque boîtier (2 à 4) est agencé pour chevaucher le corps du bracelet, auquel il est fixé par serrage à l'aide d'une plaque de fond (27) disposée sous ledit corps.5. Wrist watch according to claim 3, characterized in that each case (2 to 4) is arranged to overlap the body of the bracelet, to which it is fixed by clamping using a bottom plate (27) disposed under said body.
6. Montre-bracelet selon la revendication 1 ou 2, caractérisée en ce que certains des éléments extérieurs, autres que lesdits boîtiers, sont des éléments décoratifs (5) répartis le long du corps du bracelet et reliés les uns aux autres de manière souple par le bracelet.6. Wristwatch according to claim 1 or 2, characterized in that some of the external elements, other than said cases, are decorative elements (5) distributed along the body of the bracelet and connected to one another in a flexible manner by the bracelet.
7. Montre-bracelet selon la revendication 6, caractérisée en ce que chaque élément décoratif (5) est agencé pour chevaucher le corps du bracelet, auquel il est fixé par serrage à l'aide d'une plaque de fond (29) disposée sous ledit corps.7. Wrist watch according to claim 6, characterized in that each decorative element (5) is arranged to overlap the body of the bracelet, to which it is fixed by clamping with the aid of a bottom plate (29) disposed under said body.
8. Montre-bracelet selon la revendication 1 , caractérisée en ce que le film flexible à circuits imprimés (10) comporte une languette de connexion (18) pourvue de pistes conductrices (19) pour le relier à l'unité d'affichage (20) et en ce que ladite languette émerge à l'extérieur du corps du bracelet.8. Wrist watch according to claim 1, characterized in that the flexible film with printed circuits (10) comprises a connection tab (18) provided with conductive tracks (19) to connect it to the display unit (20) and in that said tab emerges outside the body of the bracelet.
9. Montre-bracelet selon la revendication 1 , caractérisée en ce que le film flexible à circuits imprimés (10) comporte deux lamelles de contact (16, 17) pour le relier à la source d'alimentation (15) et en ce que lesdites lamelles émergent à l'extérieur du corps du bracelet.9. Wristwatch according to claim 1, characterized in that the flexible film with printed circuits (10) comprises two contact strips (16, 17) for connecting it to the power source (15) and in that said strips emerge outside the body of the bracelet.
10. Procédé de fabrication d'une montre-bracelet selon l'une des revendications précédentes, comprenant les étapes dans lesquelles :10. Method for manufacturing a wristwatch according to one of the preceding claims, comprising the steps in which:
- on monte les composants (11 , 12) du mouvement d'horlogerie sur le film flexible à circuits imprimés (10), lequel comporte des moyens de connexion électrique (16, 17, 18) pour le relier à l'unité d'affichage (20) et à la source d'alimentation (15);- the components (11, 12) of the clockwork movement are mounted on the flexible printed circuit film (10), which comprises electrical connection means (16, 17, 18) for connecting it to the display unit (20) and to the power source (15);
- on réalise le corps du bracelet (1 ) par surmoulage sur le film flexible et lesdits composants à l'exception desdits moyens de connexion; et- The body of the bracelet (1) is produced by overmolding on the flexible film and said components with the exception of said connection means; and
- on raccorde l'unité d'affichage et la source d'alimentation aux dits moyens de connexion et l'on fixe lesdits éléments extérieurs (2 à 5) sur le corps du bracelet. - Connecting the display unit and the power source to said connection means and fixing said external elements (2 to 5) on the body of the bracelet.
PCT/CH2000/000604 1999-11-11 2000-11-13 Electronic wrist watch comprising an integrated circuit incorporated in a flexible band WO2001035173A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US09/869,971 US6619836B1 (en) 1999-11-11 2000-11-13 Electronic wristwatch including a printed circuit incorporated in a flexible wristband
DE60040268T DE60040268D1 (en) 1999-11-11 2000-11-13 ELECTRONIC WRISTWATCH WITH A, IN A BELVIUM BRACELET, BUILT-IN LADDER PLATE
JP2001536642A JP4763200B2 (en) 1999-11-11 2000-11-13 Electronic watch including a printed circuit embedded in a flexible wristband
EP00972529A EP1145085B1 (en) 1999-11-11 2000-11-13 Electronic wrist watch comprising an integrated circuit incorporated in a flexible band
HK02105653A HK1044199A1 (en) 1999-11-11 2002-07-31 Electronic wrist watch and the methode of manufacturing the same.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2061/99 1999-11-11
CH206199 1999-11-11

Publications (1)

Publication Number Publication Date
WO2001035173A1 true WO2001035173A1 (en) 2001-05-17

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PCT/CH2000/000604 WO2001035173A1 (en) 1999-11-11 2000-11-13 Electronic wrist watch comprising an integrated circuit incorporated in a flexible band

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US (1) US6619836B1 (en)
EP (1) EP1145085B1 (en)
JP (1) JP4763200B2 (en)
KR (1) KR100695073B1 (en)
CN (1) CN1175328C (en)
DE (1) DE60040268D1 (en)
HK (1) HK1044199A1 (en)
WO (1) WO2001035173A1 (en)

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DE60040268D1 (en) 2008-10-30
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CN1175328C (en) 2004-11-10
EP1145085A1 (en) 2001-10-17
KR100695073B1 (en) 2007-03-14
KR20010110336A (en) 2001-12-13
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JP2003514231A (en) 2003-04-15
EP1145085B1 (en) 2008-09-17

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